JPH11172845A - Exterior wall material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exterior wall material, by which the generation of strain generated by the difference of the thermal expansion coefficients of a base material and an exterior facing panel and which has an excellent heat- insulating effect. SOLUTION: The exterior wall material is composed of a base material 1 and an exterior facing panel 2 superposed on the outdoor side of the base material 1. A slipping-off preventive piece 5 retained to a joining section piece 3 is communicated with the window hole 4 of the joining section piece 3 unified with the base material 1, and an assembling screw 6 is penetrated an opening in which the screw can be moved in the in-plane direction of the base material 1. A spacer 7, to which the front end of the assembling screw 6 is screwed, is fixed to the external facing panel 2, and a void 14 is formed between the external facing panel 2 and the base material 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall material used for an outer wall of a building, for example, a curtain wall.

[0002]

2. Description of the Related Art An outer wall material having a structure in which an exterior panel such as a tile or a stone material is adhered to a base material made of concrete or the like has been used. Metallic exterior panels are also used as exterior wall materials, but the base material and exterior panel necessarily have different coefficients of thermal expansion. There is a case where the desired appearance is impaired.

For this reason, as described in Japanese Patent Application Laid-Open No. Hei 7-331779, a joining piece is provided on the base material side, and an assembling screw fastened to the outer panel side is attached to the joining piece, and between them. There is a structure in which when a difference in thermal expansion occurs, the difference in diameter between the opening of the joining piece and the mounting screw penetrating the opening is absorbed to prevent the occurrence of distortion.

[0004]

The prior art employs a configuration in which the outdoor surface of the joint piece and the outdoor surface of the substrate are flush with each other, so that the substrate is superposed on the exterior panel without any gap. If the contact surface between the base material and the exterior panel has irregularities, the relative displacement due to the difference in thermal expansion does not go smoothly, and the exterior panel may be damaged. For this reason, it is necessary to smooth the relative displacement of the exterior panel along the base material by making the outdoor surface of the base material smooth.

The present invention has been made with the object of providing a product having a structure that eliminates the disadvantages of the outer wall material described in the above-mentioned publication.

[0006]

Means for Solving the Problems A base member and an exterior panel superposed on the outdoor side of the base member are engaged with a window hole of a joint member integrated with the base member, and are fixed to the joint member. The mounting screw is passed through the retaining piece to be inserted and with a gap movable in the in-plane direction of the base material, and a spacer screwed with the tip of the mounting screw is fixed to the exterior panel. A basic means is to provide a gap between the exterior panel and the base material.

[0007]

1 is an enlarged sectional view, FIG. 2 is a partially cutaway enlarged front view, and FIG. 3 is a front view.

The outer wall material A according to the present invention comprises a base material 1 and an exterior panel 2 superposed on the outdoor side of the base material 1, and a window hole 4 of a joint piece 3 integrated with the base material 1. Then, through the retaining piece 5 which is locked to the joining piece 3,
The assembling screw 6 is made to penetrate with a gap movable in the in-plane direction, and a spacer 7 to which the tip of the assembling screw 6 is screwed is fastened to the exterior panel 2 so that the exterior panel 2 and the The space 14 is provided between the base material 1 and the heat insulating material 8 is filled in the space 14.

The exterior material A of the embodiment is provided with fastening bolts 9 at appropriate places on the back (indoor side) side of the exterior panel 2 of a required size.
a,..., 9b,.
One side of the screw hole 10 provided at the center is screwed together to fasten the spacer 7, and the fastening bolt 9b, which is located on the peripheral end side of the exterior panel 2, is provided with the fastening bolt 9b. The frame-shaped spacer 7 'is assembled so as to penetrate, and a nut 11 is screwed into a tip of the fastening bolt 9b protruding from the frame-shaped spacer 7', thereby attaching the frame-shaped spacer 7 'to the exterior panel 2
A heat insulating piece 12 and a sliding material 13 (which may be omitted by making the heat insulating piece 12 a slippery resin material) at the free end (indoor end) of the spacer 7;
The joining piece 3, the sliding member 13 ′, and the retaining piece 5 are sequentially overlapped with each other, and the mounting screws 6 are sequentially passed therethrough from the retaining piece 5 side (indoor side). Is screwed into the other side of the screw hole 10 of the spacer 7 and tightened, and the joint piece 3 and the like are assembled to the exterior panel 2 via the spacer 7, and then the joint provided with the joint piece 3 is provided. Frame 3
The base material 1 is formed into a product by embedding the anchor piece 3a of A in the base material 1.

In the embodiment, the heat insulating material 8 is polymerized on the exterior panel 2 before the base material 1 is molded.
The heat insulating material 8 is provided between the base material 1 and the exterior panel 2.

The heat insulating material 8 may be omitted, and the space 14 formed between the base material 1 and the exterior panel 2 may be configured as an air layer, so that a heat insulating effect may be expected.

The joint piece 3 is provided with the window 4 at a portion overlapping the spacer 7, and the window 4 is generated by a relative difference in expansion and contraction of the base material 1 and the exterior panel 2 due to heat. The outer diameter of the assembling screw 6 is set to be larger than the outer diameter of the assembling screw 6 so that the relative displacement (finding direction) of the assembling screw 6 with respect to the outer panel 2 via the outer panel 2 is sufficiently performed. A gap is formed between the mounting screw 6 and the base material 1 in the in-plane direction, and the gap is filled with an elastic piece 15.

The window hole 4 has a stepped shape as shown in the figure, and the elastic piece 15 having an outer diameter corresponding to the stepped shape has a through hole at the center, and the mounting screw 6 is spacered through the through hole. 7, and the through hole serves as a reference (centering) when the assembling piece 3 and the spacer 7 are combined.

Thus, when thermal deformation (expansion or shrinkage) occurs in one or both of the base material 1 and the exterior panel 2, the joint piece 3 fixed on the base material 1 side and the spacer fixed on the exterior panel 2 side Since the mounting screw 6 via 7 is engaged with a gap in the window hole 4 provided in the joint piece 3, the mounting screw 6 can move in the in-plane direction of the base material 1, and Relative displacement due to thermal deformation becomes possible, and the two are relatively displaced without distortion occurring between them.

The sliding members 13 and 13 'are used to smoothly perform the relative displacement, and the joining piece 3 is interposed between the sliding members 13 and 13'.

The reason why the joint piece 3 is disposed at a position protruding in the outdoor direction from the outdoor side surface of the base material 1 is that the indoor side surface of the spacer 7 (heat insulating piece 12) is formed when the thermal expansion occurs. This is because the contact with the outdoor side surface is not ensured. Even if a base material having irregularities on the outdoor side surface is used, no trouble is caused.

In the figure, reference numeral 18 denotes a wet sealing material.

[0018]

The present invention has the configuration described above,
Of course, it is possible to prevent the occurrence of distortion caused by the difference in the number of thermal expansion coefficients between the base material and the exterior panel. Even if there is unevenness, thermal deformation is performed without any problem, and the space between the base material and the exterior panel can be applied as a heat insulating portion, and an outer wall material having excellent heat insulating effect can be provided.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view.

FIG. 2 is a partially cutaway enlarged front view.

FIG. 3 is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base material 2 Exterior panel 3 Joining piece 4 Window hole 5 Retaining piece 6 Assembly screw 7 Spacer 14 Void

Claims (2)

[Claims] 1. A retaining piece which is composed of a base material and an exterior panel superposed on the outdoor side of the base material, and which is engaged with a window hole of a joining piece integrated with the base material and which is locked to the joining piece. Further, the mounting screw is passed through with a gap movable in the in-plane direction of the base material, and a spacer screwed with the tip of the mounting screw is fastened to the exterior panel to secure the exterior panel. An outer wall material having a gap between a panel and the base material. 2. The outer wall material according to claim 1, wherein the gap is filled with a heat insulating material.